{"cve":"CVE-2026-90335","nvd":{"published":"2026-09-17T17:17:32.073","modified":"2026-10-21T13:20:51.147","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: skip cdev_del() when no cdev is registered\n\nTTY device registration can fail before a cdev is allocated.\nSerial core keeps the port so setserial can still use it, and later\nremoval passes the NULL cdev slot to cdev_del(), causing a NULL-pointer\ndereference.\n\nOnly delete the cdev when the slot is not NULL.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/21031bd0d662549412378110c989b164feb6e4be","https://git.kernel.org/stable/c/2af4c46b429907edc8cb069c78fca1d950120b98","https://git.kernel.org/stable/c/3dbf85ef40b6366ba15e882f7536cdc98bea579a","https://git.kernel.org/stable/c/c3b5623fd97648f2747444aa8932ae604662df93","https://git.kernel.org/stable/c/ea3d2fae7c1d6492145976553817d22e8ef69a0e"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-90335","score":0.00209,"percentile":0.10918,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}